Music-leaf turner.



R. W. ALLEN.

MUSIC LEAF TURNER.

APPLICATION men JULY 3.1915.

Patented Oct. 31, 1916.

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ROBERT W. ALLEN, 0F REGINA, SASKATCHEWAN, CANADA.

MUSIC-LEAF TURNER.

Specification of Letters Patent.

Patented Oct. 31, 1916.

Application filed July 3, 1915. Serial No. 38,037.

To all whom it may concern Be it known that 1, ROBERT VVILLIAM ALLEN, a citizen of the Dominion of Canada, residing at Regina, in the Province of Saskatchewan, Dominion of Canada, having invented a new and useful Music-Leaf Turner, do hereby declare that the followand exact description of the same.

My invention is an improvement in music leaf turners.

The objects of my invention are, to provide a music leaf turner which will be capable of turning loose sheets as well as sheets of bound music; a device that may be easily operated, and adapted to be applied to pianos and organs, and for ready attachment to music stands or racks; one which shall be compact, simple of construction and neat in appearance, eliminating all bulky mechanical parts which may appear clumsy or inapt. I attain these objects by means of a series of spring actuated leaf carrying armsrotatably mounted on a vertical tube set at right angles to, and at one end of, a horizontal tube running parallel to arms; by means of a wheel oscillating in a slot cut vertically through said horizontal tube, and which wheel has finger like projections which hold or release leaf carrying arms according to the motion given to a handle which is also a projection of thewheel. I

The preferred embodiment of the invention' is illustrated in the accompanying drawing in which Figure 1 is a front view of device ready for turning sheets; Fig. 2 is an end sectional view at the rod; Fig. 3 is an end sectional view at the wheel, showing fingers locked ready for turning sheets; Fig. 4 is a detail of the detachable portion comprising the music rest and rod, shown on a greatly reduced scale; Fig. 5 is a horizontal section through the collar and flange showing the method of attaching the springs and arms. Fig. 6 is an enlarged view of the outer end of the arm; Fig. 7 is a view of the spring clip; Fig. 8 is a highly magnified cross sectional view showing how the music leaf is inserted in the diagonal slit.

Similar letters refer to similar parts throughout the several views.

Referring more particularly to the draw- 1 denotes the rest for the back of the music,

same being turned at right angles to form a horizontal plate 1, which acts as a footing for music sheets. are attached springs 2 pressing toward rod 3 allowing music of different thicknesses to be held securely. The rod 3 is screwed into tube 3 immediately below plate 1*. This rod passes through plate 1 and when the rod is removed by unscrewing then the rest 1, springs 2 and rod 3 can be removed from the remaining structure. This enables the device to be quickly and easily disassembled in order that it may be compact when shipped or carried. The vertical tube 3" is attached to and forms a part of a horizontal tube 8, and is internally threaded immediately below plate l 'to receive rod 3. To this tube 8 is rotatably mounted a series of flanged collars 5 resting on a saddle 7 placed at the juncture of tubes 3 and 8 adapted to support collars, said collars being kept down into position by a plate 1".

A series of spring actuated leaf carrying arms 6 are attached eccentrically to said collars (as shown by dotted lines in Fig. 5), adapted to come flush one behind theother. The uppermost arm is straight, the remaining arms being turned upward about midway along same in order to attain the same level as said straight arm, so that all the arms pass above the releasing attachments 10 and 11. All the arms are again turned up of diflerent lengths as shown in Figs. 1 and 3 to form fingers 15. Said fingers are split diagonally as shown to receive the music sheets, the front half being shorter than the rear half of each finger, and having its upper end bent forward to aid in the inserting of music sheets, said fingers being numbered to further facilitate this.

A series of springs 4 are each attachedv to the base plate at one end, and to a leaf carrying arm at the other, so that when in action the springs pass between the flanges of collars 5 and have an outward circular motion around tube 3 The horizontal tube 8 is attached to the base plate 20 by means of screws or pins which pass through chocks 21, which ohocks oi'fset said tube from the base in order to allow free play of the various parts.v In said tube a slot is provided in which a wheel 9 oscillates, said wheel being mounted on an aXle 9 as shown, the slot being just sufficiently long enough for the wheel to work easily in it. Said wheel has also a lug or projection 9*, which is drilled to receive a To rest 1 spring 12. Said wheel has also attached to it and forming a part of it, two arm stops or releasing finger attachments, 10 and 11, adapted to prevent arms 6 from revolving until required. 10 projects from the front face of said wheel and has normally a vertical position, 11 projects from rear face of wheel and is set at an angle of about 30 degrees to 10. The handle 13 is also a part of wheel 9. When this-handle is struck to the right, it forces the stops 10 and 11 to left, just su'liiciently (as shown in dotted position in Fig. l) to allow the arm that 10 is holding to be released, and meanwhile stop 11 takes up the original position of 10, holding back the remaining arms. The handle is prevented from going farther than the dotted position shown in Fig. 1 by the spring 12. When the handle is held to the left, the wheel is not retarded until stop 11 comes into contact with the edge of the slot in tube; then stop 10 willbe inabout the original position of 11. This allows the arms to be forced back upon plate 14, where they are locked by the stop 10 which is brought back into its original position by the spring 12, when the handle 13 is released.

The supporting plate 14 is attached to base plate 20 at the same level as the uppermost arm upon which all the arms are forced in readiness to turn the music sheets. Said plate is adapted to keep all the leaf carrying arms at an absolutely uniform level, in order to insure a perfect working harmony with stops l0 and 11 for the re leasing and detaining of said arms.

A rubber washer 16 is employed on each arm as shown for silencing purposes. Two brackets or clamps 17 are attached to base plate as shown to attach the device to the music stand. The first page of bound music is prevented from curling back by the pin 18. A rubber buffer 19 is attached to the base plate against which arms 6 swing,

Copies of this patent may be obtained for five cents each, by addressing the which acts as a silencer, and also prevents scratching and denting of the base plate or the instrument to which the device is attached.

A concave incision 22 is cut on the inner sides of the leaf carrying arms as shown to aid the sliding of stop 11 into position between said arms and to insure the separating of same. A collar 23 is fixed on rod 3 as shown to form a seat or hearing for a suitable clip 24-. Said clip is detachable and is used in the case of turning single sheets only; the sheets being inserted in this clip which supports same and keeps them centered on rod 3.

From the foregoing description taken in connection with the drawings, it is thought the invention will be readily understood.

Various changes in the size, shape, proportion and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is A music leaf turner comprising a base, a music supporting plate mounted thereon, a vertical tube mounted below the music supporting plate, a rod threaded into the tube adapted to retain the music in a vertical position, a plurality of collars revolubly mounted on the tube and having flanges at both ends thereof, a music leaf carrying arm carried by each of the collars, contractile springs on the collars arranged between the flanges and having operative connection with the base and arms, and means for successively releasing the arms one at a time.

Regina, 17th June 1915.

ROBERT W. ALLEN.

Signed in the presence of A. GAMBLE, W. A. PIERSON, G. A. BERRY.

Commissioner of Patents,

Washington, D. G. 

